S8AS Datasheet, PDF (18/26 Pages) Omron Electronics LLC – Smart Power Supply

S8AS
Test Mode
Device startup operation can be tested by turning ON/OFF branch
outputs either individually or together. The branch outputs that are to
be used are set to be connected in Test Mode. The operation to turn
all branch outputs ON/OFF together can be used to check startup and
shutdown sequences.
Test Mode (TST) Selected
Press for 3 s. (5)
(1)
(3)
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(2)
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(4)
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Protection Level Setting
A protection level can be set to prevent operating errors during normal
operation. Reading or changing parameter settings and other
operations can be restricted in three levels.
Protection
Level
Intended for
Possible operations
0
Facility designers All settings can be read and
and manufacturers changed.
1
Facility
maintenance
personnel
Some settings can be read and
changed.
2
On-site operators
Settings can be read but not
changed.
Select PRT (protection level) from the Mode Selection Menu and then
perform the following procedure. (The following example shows
changing to protection level 0.)
After no key
operations
for 3 s
Mode Selection Menu
(Protection Level)
Setting Protection Level
Select TST (Test Mode) from the Mode Selection Menu and press the ENT Key.
Test Mode will be entered.
(1) When Test Mode is entered, the branch output number 1 indicator (see note) will flash and
“OFF” or “ON” will flash on the 7-segment display.
OFF flashing: Press the ENT Key to turn OFF branch output 1.
ON flashing: Press the ENT Key to turn ON branch output 1.
(2) The branch output can be selected at display (1) by using the Down (CH) Key.
Press the ENT Key to turn the output ON and OFF.
(3) If the Up (SEL) Key is pressed at display (1), all branch output number indicators will flash
and “OFF” will flash on the 7-segment display. All branch outputs can be turned OFF in this
condition.
Press the ENT Key to turn all branch outputs OFF.
(4) If the Up (SEL) Key is pressed at display (3), all branch output number indicators will flash
and “ON” will flash on the 7-segment display. All branch outputs can be turned ON in this
condition.
Press the ENT Key to turn all branch outputs ON.
(5) After completing ON/OFF testing and setting the branch outputs, press the Up (SEL) and
Down (CH) Keys simultaneously for 3 s to go to the Mode Select Menu, and then enter Run
Mode.
* The branch output number set with the Down (CH) Key will not change even when the
operating mode or parameters are changed. The branch output displayed when Test Mode is
entered will not necessarily be branch output 1.
Note: 1. In Test Mode, the branch output number indicators and 7-
segment display will continue to flash.
2. In Test Mode, the abnormal tripping output (TRP) will
operate if one or more of the branch outputs are not
connected. The TRP output will not operate if the operating
mode is changed.
3. If power is turned OFF in Test Mode, Test Mode will be
entered the next time power is turned ON.
Indicator Status Notation
Lit
Flashing
After no key operations for 3 s
Parameter Initialization
All S8AS parameters can be restored to their default settings.
Set protection level 0 and then go to the Mode Selection Menu. INI
(parameter initialization) will be added to the menu. Select INI and
then perform the following procedure.
Mode Selection Menu
(Parameter Initialization)
Parameter Initialization
After no key
operations
for 3 s
Run Mode
Setting Confirmation
(Flashes for 3 s.)
Note: 1. The Mode Selection Menu is not displayed in protection
level 1 or 2. The default setting is for protection level 1.
2. Default Settings
• The operating mode will change to Run Mode.
• The parameters will change to their default settings.
• All branch outputs will be changed so they are connected.
• The protection level will change to level 1.
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